Ricoh D072 Service Manual page 288

Software performance error
The software attempted to
perform an unexpected
operation.
990 B
Software continuity error
The software attempted to
perform an unexpected
991 D
operation. However, unlike
SC990, the process can keep on
running.
Undefined error
An error not controlled by the
992 B
system occurred (the error does
not come under any other SC
code).
SM Appendix
When this error occurs,
the file name, address,
and data will be stored in
NVRAM. This
information can be
checked by using
SP7-403. See the data
and the situation in
which this SC occurs.
Then report the data and
conditions to your
technical control center.
3-33
SC Tables (F/SPF: D068/D069)
Software defective
Internal parameter incorrect
Insufficient working memory
Logged only; the machine can
continue to operate
Defective software program
D067/D068/D069/D072